Spring-tilt mechanism for a chair or seat

Details Spring-tilt mechanism for a chair or seat Spring-tilt mechanism for a chair or seat

1986-05-12

1987-05-19

Machado, Reinaldo P.

Supports

Resilient support

Adjustable preloading of resilient means

248608, 2483721, 297304, F16M 1300

Patent

active

046661212

ABSTRACT:
The spring-tilt mechanism comprises a support frame (4), a seat portion (1) tiltable on the support frame (4) about a substantially horizontal axis (2) between a first and a second position, e.g. defined by stops (13, 13'). One end (15') of a torsion spring (15) is fixed against rotation in the support frame (4). A gear box (16) is operatively engaged with the other end (15") of the torsion spring (15) and has an extendible member (24) engageable with a tracking surface (31) of the seat portion (1). An operating member (29) on the gear box (17) is easily accessible to a user sitting on the seat portion (1) to pre-load the torsion spring (15) for cushioning the user on the seat portion (1) between the said first and second positions (stops 13, 13').

REFERENCES:
patent: 2845991 (1958-08-01), Soderberg
patent: 2889869 (1959-06-01), Seenberg
patent: 4235408 (1980-11-01), Sapper
patent: 4438978 (1984-03-01), Arild

Affiliated with

Also associated with

Rating

Spring-tilt mechanism for a chair or seat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spring-tilt mechanism for a chair or seat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring-tilt mechanism for a chair or seat will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1559584